All sales that were made prior to January 1, 1972, under deeds of trust to secure debts and indemnify sureties when the notice was not published once a week for four successive weeks or a specified number of successive weeks are declared to be valid and effective in all respects, if other reasonable advertisement of such sale was given and such sale was otherwise valid and effective, provided that nothing herein contained shall be construed as affecting any final order entered prior to March 1, 1944, by any court of competent jurisdiction, or any action now pending in a court of competent jurisdiction, or as affecting intervening vested rights, and provided further that no action may be brought after January 1, 1972, to vacate or set aside any such sale.